排泄系统 páixièxìtǒng excretory system Definitions Defs Origin Strokes Stroke Words Sentences Sents 排泄系统 排洩系統 páixièxìtǒng excretory system the biological system of an organism that removes excess, unnecessary materials or waste drainage system a system of watercourses or drains for carrying off excess water or liquid waste
排泄系统 排洩系統 páixièxìtǒng excretory system the biological system of an organism that removes excess, unnecessary materials or waste drainage system a system of watercourses or drains for carrying off excess water or liquid waste
